Space
What is it?
Table of Contents
2. The nine planets.
3. Floaters.
4. Stars.
5. Constellations.
The Sun
It has a lot of strong gravity, so all of the planets like to stay close! Even the Earth will go in big circles around the sun!
The Moon
The moon is a place that real astronauts have walked on! It is different than a planet.
It likes the Earth's gravity, just like all planets love the Sun's! The moon goes in circles around us, while we go around the the biggest star!
Mercury
This is the closest planet to the sun! The day on Mercury is long! On Earth, our day is 24 hours. One day on Mercury is about 60 of our days!
Venus
Venus is the hottest planet in our galaxy! It can get to be 800 degrees! We think it's hot here when it's ninety! Venus has a lot of volcanos, and a bunch of the surface looks weird because of the lava trails!
Earth
Earth is covered with water! Over half of the Earth is an ocean! Earth is super old! Scientists say it's 4.5 BILLION years old!
Mars
The scientists think that Mars used to have large amounts of surface water, which they believe means there may have been life there!
Jupiter
Jupiter has many bands. The lighter colored bands are called Zones, and the darker colored bands are called Belts. Jupiter has four different moons named Io, Europa, Ganymede, and Callisto! We only have one moon, but Jupiter has four. It's much bigger than our Earth!
Saturn
Saturn has three bunches of rings with more and more rings inside of them. They cannot count how many rings Saturn has because there are too many of them. You can see Saturn if you go out at night time. It is visible to the naked eye!
Uranus
Uranus has twenty-seven moons that are named after a man named Shakespeare. He wrote plays, and they named Uranus' moons after the people in them. Uranus also has eleven rings. They all have names too. 6, 5, 4, Alpha, Beta, and Gamma are a few of them.
Neptune
Neptune also has rings, like Jupiter, Saturn, and Uranus. They are smaller and harder to see, but they have bunches of matter in random places!
Pluto
Pluto is smaller than all of Jupiter's moons, Io, Europa, Ganymede, and Callisto!
Asteroids
There's a big group of them called an Asteroid Belt that obit between Mars and Jupiter.
Comets
All comets will orbit around the sun!
Meteorites
If you find a meteorite in a certain place, they will name the rock after the place you found it!
STARS
Red Giant
A Red Giant is a very, very old star. It has grown bigger and bigger over time.
Cepheid Variable
Variable stars are ones who become very bright and go dim over time. They keep lighting up and dimming down over the span of their life. Their mass five to twenty times more than the sun!
Supernova
A supernova is what happens when a star explodes! It can shine even brighter than ten BILLION suns!
White Dwarf
A White Dwarf is what happens when big stars use up all of their nuclear power! When it gets tired, the star throws off its outer material to show its very inner bits. It gets SUPER hot and then over the next billion years, it begins to cool off.
Star
A star is a ball of gases held together by gravity! They're bright and shiny like the sun, and the sun is really just a big star. When stars get old, they explode and become a White Dwarf.
Stars
A long time ago, they used the sun's movement past the stars to make calendars. Stars can form in bunches that are called constellations. Some people think they make pictures in the sky.
Constellations
The Big Dipper
There are 88 constellations in the solar system!